Crush

Usually the person that your bestie is non stop pestering you to ask him/her/they out
The person who gives you butterflys (in my case, stuttering when speaking and not knowing what to say, forcing my friends to continue conversation, probably causing him to like her more than me.
A crush, also can, according to Websters Dictionary and Thesaurus, word to word; a foolish or sometimes serious likeing to someone.

a crush can also crush your soul. (been there...)

Person 1: Hey bestie, I have a crush on him. -Stoumah butterflys.
Person 2; Lets go talk to him then!!
--Goes over--
Person 1; Hi...Erm...How're you?...Umm..
Person 2 talking to crush, crush atleast not ignoring Person 1 and including them.